Date: Fri, 3 Aug 2001 13:47:05 +0100 From: Ollie Cook <ollie@uk.clara.net> To: freebsd-questions@freebsd.org Subject: 4.0-STABLE panics Message-ID: <20010803134704.K22238@mutare.noc.clara.net>
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One of our servers, whose primary job is just to
serve up static web pages has been panic'ing a lot
recently.
I attach some debugging information from the three
crash cores.
There doesn't seem to be a lot of information to
go on, but any ideas that anyone might have would
be greatly appreciated.
I would be especially interested to hear if anyone
thinks that it could be a hardware problem.
There is no information in /var/log/messages prior
to the panics.
Cheers,
Ollie
--
Oliver Cook Systems Administrator, ClaraNET
ollie@uk.clara.net 020 7903 3065
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FreeBSD thalia.uk.clara.net 4.0-20000621-STABLE FreeBSD 4.0-20000621-STABLE #0: Thu Jun 22 13:07:53 BST 2000 mark@thalia.uk.clara.net:/usr/src/sys/compile/THALIA i386
su-2.04# ls -al /var/crash
total 3157112
drwxr-x--- 2 root wheel 512 Aug 3 11:53 .
drwxr-xr-x 19 root wheel 512 Jun 22 2000 ..
-rw-r--r-- 1 root wheel 2 Aug 3 11:52 bounds
-rw-r--r-- 1 root wheel 1726719 Jun 17 19:43 kernel.2
-rw-r--r-- 1 root wheel 1726719 Aug 1 19:23 kernel.3
-rw-r--r-- 1 root wheel 1726719 Aug 3 11:53 kernel.4
-rw-rw-r-- 1 root wheel 5 Jun 21 2000 minfree
-rw------- 1 root wheel 536805376 Jun 17 19:43 vmcore.2
-rw------- 1 root wheel 536805376 Aug 1 19:23 vmcore.3
-rw------- 1 root wheel 536805376 Aug 3 11:53 vmcore.4
Crash #1 (17th June):
IdlePTD 2936832
initial pcb at 25ef40
panicstr: page fault
panic messages:
---
panic: double fault
syncing disks... 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19
giving up on 19 buffers
Uptime: 48d0h8m1s
(kgdb) bt
#0 boot (howto=256) at ../../kern/kern_shutdown.c:302
#1 0xc014e73c in poweroff_wait (junk=0xc02389ef, howto=-592061056) at ../../kern/kern_shutdown.c:552
#2 0xc020629d in trap_fatal (frame=0xdcbaee94, eva=3217165432) at ../../i386/i386/trap.c:927
#3 0xc0205f75 in trap_pfault (frame=0xdcbaee94, usermode=0, eva=3217165432) at ../../i386/i386/trap.c:820
#4 0xc0205b73 in trap (frame={tf_fs = -591790064, tf_es = -1071644656, tf_ds = -1066074096, tf_edi = -593200148, tf_esi = -1058280972,
tf_ebp = -591728924, tf_isp = -591728960, tf_ebx = -1058280972, tf_edx = 0, tf_ecx = -1077801864, tf_eax = 134264, tf_trapno = 12,
tf_err = 0, tf_eip = -1071626845, tf_cs = 8, tf_eflags = 66054, tf_esp = -593200256, tf_ss = 1}) at ../../i386/i386/trap.c:426
#5 0xc02045a3 in pmap_remove_pages (pmap=0xdca47bec, sva=0, eva=3217031168) at ../../i386/i386/pmap.c:2919
#6 0xc0146fc7 in exit1 (p=0xdcb5dd80, rv=0) at ../../kern/kern_exit.c:215
#7 0xc0146db4 in exit1 (p=0xdcb5dd80, rv=-1072358459) at ../../kern/kern_exit.c:103
#8 0xc0206549 in syscall2 (frame={tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = 0, tf_esi = -1, tf_ebp = -1077939004, tf_isp = -591728684,
tf_ebx = 675325988, tf_edx = 137015396, tf_ecx = 0, tf_eax = 1, tf_trapno = 12, tf_err = 2, tf_eip = 675040924, tf_cs = 31, tf_eflags = 663,
tf_esp = -1077939048, tf_ss = 47}) at ../../i386/i386/trap.c:1126
#9 0xc01fb196 in Xint0x80_syscall ()
Cannot access memory at address 0xbfbff4c4.
Crash #2 (1st August):
IdlePTD 2936832
initial pcb at 25ef40
panicstr: double fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x70
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc0151214
stack pointer = 0x10:0xc0240b84
frame pointer = 0x10:0xc0240ba8
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = Idle
interrupt mask = net tty bio cam
trap number = 12
panic: page fault
syncing disks...
F\M-l\M^N#\M-@"_ \M-@\M-L?&\M-@s[ \M-@4\M^O#\M-@panic: double fault
Uptime: 8d21h32m19s
(kgdb) bt
#0 boot (howto=260) at ../../kern/kern_shutdown.c:302
#1 0xc014e73c in poweroff_wait (junk=0xc0238963, howto=-1071411472) at ../../kern/kern_shutdown.c:552
#2 0xc02062f3 in dblfault_handler () at ../../i386/i386/trap.c:957
Crash #3 (3rd August):
IdlePTD 2936832
initial pcb at 25ef40
panicstr: double fault
panic messages:
---
panic: double fault
syncing disks... 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36
giving up on 36 buffers
Uptime: 1d16h30m54s
(kgdb) bt
#0 boot (howto=256) at ../../kern/kern_shutdown.c:302
#1 0xc014e73c in poweroff_wait (junk=0xc0238963, howto=-1071411472) at ../../kern/kern_shutdown.c:552
#2 0xc02062f3 in dblfault_handler () at ../../i386/i386/trap.c:957
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